The iShares ETF (EWN) is comprised of approximately 50 companies but has historically been weighted towards the top four holdings. There have been times that these four companies have represented nearly 50% of the entire weight of the ETF. These companies include:

Unilever DRC (consumer goods)

ING Group (banking and financial services)

ASML holding (semiconductors)

Koninklijke Philips (diversified technology)

Unilever and ING in particular have represented a large percentage of this ETF, which is the only ETF listed on U.S. exchanges focused on the Netherlands.